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Old December 30, 2012, 06:22 PM   #1
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Join Date: October 14, 2009
Location: Sunshine and Keystone States
Posts: 4,448
Can a misfeeding Ruger Mark II magazine be revived?

I have a total of four magazines for my Ruger MKII512. A couple of years ago I discovered that one of them consistently misfeeds one or two rounds per mag, and now another one does as well. I have cleaned them inside and out (with disassembly) but the problem persists. The remaining two magazines function fine.

Does anyone know the common cause of feeding issues and if/how the magazine might be tweaked to correct this? When a misfeed occurs, the old brass usually fails to eject and gets stuck behind the next round, which gets partway into the chamber. Holding the bolt back, you can usually pluck out the old brass and then let the bolt go to seat the next round.

Last edited by spacecoast; December 30, 2012 at 06:51 PM.
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